Bobbin Detection Mechanism for Roving Frame Transport
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Solution Overview
Problem
Existing bobbin transfer systems in roving frames require separate mechanisms for full and empty bobbins due to different heights, complicating the structure and operation, especially when full bobbin hangers and empty bobbin hangers are disposed at the same height.
Innovation Solution
A bobbin detection mechanism using a plurality of full and empty bobbin hangers arranged alternately, with a rail member guiding them, and a through-beam type photoelectric sensor system that includes a sensor light emitter, receiver, and a vertically movable member with a sensor light shield to detect empty bobbins even when held by full bobbin hangers, allowing for simultaneous detection and simplified transfer operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If full bobbin hangers and empty bobbin hangers are disposed at different heights, then the full bobbins and empty bobbins can be transferred separately, but the device structure becomes complicated and requires separate transfer mechanisms
Solution Approach 1:
The patent merges the transfer path for full bobbins and empty bobbins into a single rail member, allowing both types of bobbins to be transferred at the same height. This eliminates the need for separate transfer mechanisms and reduces device complexity while maintaining detection accuracy through the photoelectric sensor system.
Solution Approach 2:
The rail member is designed to serve as a universal transfer path for both full bobbin hangers and empty bobbin hangers. This multi-functional design allows a single structure to handle different types of bobbins, eliminating the need for separate transfer mechanisms and reducing overall device complexity.
2Device complexity
If full bobbin hangers and empty bobbin hangers are disposed at the same height, then the transfer mechanism is simplified, but it becomes difficult to detect empty bobbins held by full bobbin hangers
Solution Approach 1:
The detection system is segmented into multiple photoelectric sensors positioned at different locations. By dividing the detection function across multiple sensors, the system can detect empty bobbins held by full bobbin hangers without requiring different heights for hanger placement, thus maintaining a simplified transfer mechanism.
Solution Approach 2:
The patent introduces a photoelectric sensor as an intermediary detection device that can detect empty bobbins held by full bobbin hangers. This intermediary sensor system enables detection at the same height by using optical fields to penetrate and detect the presence of bobbins, solving the detection difficulty without complicating the transfer mechanism.
3Ease of operation
If separate transfer mechanisms are provided for full bobbins and empty bobbins, then the transfer operations can be performed independently, but the overall device structure and operation become complicated
Solution Approach 1:
The patent combines the transfer operations for full bobbins and empty bobbins into a single integrated system using one rail member. This merging approach maintains operational independence through controlled movement while eliminating the need for separate transfer mechanisms, thus reducing overall device structure complexity.
4Device complexity
If a single rail member is used for both full and empty bobbin hangers, then the device structure is simplified, but the detection of empty bobbins becomes more difficult
Solution Approach 1:
The detection function is segmented into multiple photoelectric sensors positioned at different locations along the single rail member. This segmentation allows the system to detect empty bobbins held by full bobbin hangers without requiring separate rail members, thus maintaining a simplified device structure while solving the detection difficulty.
Solution Approach 2:
The patent uses photoelectric sensors to detect bobbins in the optical dimension rather than relying on physical separation in the spatial dimension. By using light fields to detect the presence of empty bobbins, the system can distinguish between full and empty bobbins on the same rail member without complicating the device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables detection of empty bobbins held by full bobbin hangers at the same height, simplifying the transfer process by eliminating the need for separate mechanisms for full and empty bobbins, thereby reducing complexity and enhancing operational efficiency.
Implementation Method 1
a full bobbin hanger photoelectric sensor including a full bobbin hanger sensor light emitter configured to emit a sensor light in a bobbin hanger arrangement direction
Data Source
Figure 1
Figure 2
Figure 3A~3C
AI summary
A bobbin detection mechanism (36) in a bobbin transport device (20) for a roving frame (10) includes a plurality of full bobbin hangers (21F, 61F, 80F), a plurality of empty bobbin hangers (21E, 61E), and a full bobbin hanger photoelectric sensor (37) configured to emit a sensor light (L, L1). Each of the full bobbin hangers (21F, 61F, 80F) includes a full bobbin shaft portion, and a full bobbin vertically movable member (49, 69, 81) movable up and down relative to the full bobbin shaft portion (45). The bobbin detection mechanism (36) includes a full bobbin hanger sensor light shield (51, 71, 83) formed in the full bobbin hanger vertical movable member (49, 69, 81), and configured to block the sensor light (L, L1) from the full bobbin hanger sensor light emitter (38) when the full bobbin vertically movable member (49, 69, 81) is positioned at the holding position.